Clothing that repels bacteria, viruses and contamination

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Nanoropa is a reality

This photo is from a Cornell University scientist clothing collection. The hood, sleeves and pockets of the jacket contain nanoparticles of palladium that act as tiny catalytic converters to kill harmful components of pollution.

To create the nano-fabrics, Ong turned to Juan Hinestroza, assistant professor of fiber science at Cornell. He and postdoctoral researcher Hong Dong bathed the positively charged cotton fabrics in a solution of negatively charged metal ions. Electrostatic forces bind the metal ions to the cotton. The smaller the metal particles, the greater the surface area for interactions with microbes or smog in the atmosphere.

The best thing about these nano fabrics is that the particles are so small that the garments feel the same and convey the same sensation as any cotton shirt. The nanoparticles also prevent larger dirt particles from reaching the surface of the cotton, so garments do not need to be washed frequently. "And if you create the colors with particles, instead of using pigments," says Hinestroza, "the garment will never fade."

Source: PopSci

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